Hard surface liquid detergent compositions containing hydrocarbyl-amidoalkylenebetaine

Abstract

Detergent compositions comprising a hydrocarbyl-amidoalkyl enebetaine synthetic detergent surfactant; cleaning solvent; and buffer provide superior filming/streaking and good cleaning of hard to remove grease soils. Preferred compositions contain at least one cosurfactant. The compositions can be used to clean glass as well as for general cleaning purposes.

What is claimed is: 
     
       1. An aqueous hard surface detergent composition consisting essentially of: (a) from about 0.02% to about 5.0% by weight of the composition of hydrocarbylamidoalkylenebetaine detergent surfactant having the formula:   R--C(O)--N(R.sup.2)--(CR.sup.3.sub.2).sub.n --N(R.sup.2).sub.2 .sup.(+) --(CR.sup.3.sub.2 .sub.n --C(O)O.sup.(-)     wherein each R is an alkyl group containing from about 10 to about 18 carbon atoms, each (R 2 ) is selected from the group consisting of hydrogen, methyl, ethyl, propyl, hydroxy substituted ethyl or propyl and mixtures thereof, each (R 3 ) is selected from the group consisting of hydrogen and hydroxy groups, and each n is a number from 1 to about 4; with no more than about one hydroxy group in any (CR 3   2 ) moiety; (b) from about 0.5 % to about 20% by weight of the composition of organic solvent having the formula R 1  O--(R 2  O--) m  H wherein each R 1  is an alkyl group which contains from about 3 to about 8 carbon atoms, each R 2  is selected from the group consisting of ethylene or propylene, and m is a number from 1 to about 3; (c) buffering system to provide a pH of from about 7 to about 12; and (d) the balance being an aqueous solvent system, optionally comprising non-aqueous polar solvent selected from the group consisting of: methanol, ethanol, isopropanol, ethylene glycol, propylene glycol, and mixtures thereof, the level of non-aqueous polar solvent, when present, being from about 0.5% to about 40% by weight of the composition, and the level of water being from about 50% to about 99% by weight of the composition, and said composition being substantially free of materials that deposit on the surface being cleaned and cause unacceptable spotting/filming.   
     
     
       2. The composition of claim 1 containing at least one cosurfactant selected from the group consisting of anionic and nonionic detergent surfactants. 
     
     
       3. The composition of claim 2 wherein said cosurfactant is an anionic detergent surfactant. 
     
     
       4. The composition of claim 2 wherein said cosurfactant is selected from the group consisting of C 12  -C 18  alkyl sulfates, C 12  -C 18  paraffin sulfonates, C 12  -C 18  acylamidoalkylene amino alkylene sulfonate at a pH of more than about 9.5, and mixtures thereof. 
     
     
       5. The composition of claim 1 wherein the pH is from about 9.5 to about 11.5. 
     
     
       6. The composition of claim 1 containing at least one of said non-aqueous polar solvent. 
     
     
       7. The composition of claim 1 wherein said solvent (b) comprises from about 0.5 % to about 20% by weight of the composition of an organic solvent having a hydrogen bonding parameter of from about 2 to about 7. 
     
     
       8. The composition of claim 7 wherein said solvent (b) comprises from about 1% to about 15% by weight of the composition of organic solvent having a hydrogen bonding parameter of from about 3 to about 6. 
     
     
       9. The composition of claim 7 wherein said solvent (b) is selected from the group consisting of dipropyleneglycolmonobutyl ether, monopropyleneglycolmonobutyl ether, and mixtures thereof. 
     
     
       10. The composition of claim 1 wherein said solvent (b) is monopropyleneglycolmonobutyl ether. 
     
     
       11. The composition of claim 7 wherein said solvent (b) is at a level of from about 1% to about 15% by weight of the composition. 
     
     
       12. The composition of claim 11 wherein said solvent (b) is selected from the group consisting of dipropyleneglycolmonobutyl ether, monopropyleneglycolmonobutyl ether, diethyleneglycolmonohexyl ether, monoethyleneglycolmonohexyl ether, and mixtures thereof. 
     
     
       13. The composition of claim 1 wherein said R group contains from about 10 to about 15 carbon atoms, the R 2  attached to the amido nitrogen is hydrogen, each R 2  attached to the quaternary nitrogen is methyl, R 3  groups are hydrogen, and the n between the amido group and quaternary group is 3, and the other n is 1. 
     
     
       14. The composition of claim 1 containing at least one cosurfactant selected from the group consisting of anionic and nonionic detergent surfactants, the cosurfactant being present at a lower level than said hydrocarbyl-amidoalkylenebetaine. 
     
     
       15. The composition of claim 14 wherein said cosurfactant is an anionic detergent surfactant. 
     
     
       16. The composition of claim 14 wherein said cosurfactant is selected from the group consisting of C 12  -C 18  alkyl sulfates, C 12  -C 18  paraffin sulfonates, C 12  -C 18  acylamidoalkylene amino alkylene sulfonate at a pH of more than about 9.5, and mixtures thereof. 
     
     
       17. The composition of claim 14 containing sufficient buffering to maintain a pH of from about 9.5 to about 11.5. 
     
     
       18. The composition of claim 1 packaged in a package that comprises a means for creating a spray. 
     
     
       19. The process of cleaning hard surfaces comprising spraying said surfaces with the composition of claim 18. 
     
     
       20. The process of claim 19 wherein the composition has a concentration of component (a) in water of from about 0.02% to about 1% by weight of the composition and the hard surface is glass.